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Frequently Asked Questions
The primary codes are:
- NFPA 72 – National Fire Alarm and Signaling Code (system design, installation, performance, and testing).
- NFPA 70 (NEC) – Electrical aspects of system installation.
- NFPA 101 – Life Safety Code (occupancy-specific requirements).
- Local codes and amendments also apply and may override national standards.
Requirements depend on occupancy type, size, and use. Examples:
- Group A (Assembly) >300 people: Fire alarm system required.
- Group R-1 (Hotels): Required if 3+ units.
- Group B (Business): Depends on occupant load and egress routes.
- Refer to IBC (International Building Code) and NFPA 101.
- Conventional – Devices are grouped by zones.
- Addressable – Each device has a unique address for pinpointed alarms.
- Hybrid – Combines both features.
- Wireless – Useful in historic or hard-to-wire buildings.
- Control Panel (FACP)
- Initiating Devices (smoke, heat, pull stations)
- Notification Appliances (horns, strobes, speakers)
- Power Supplies (primary & backup)
- Monitoring devices (communicators for remote dispatch)
- Primary power from commercial electricity.
- Secondary (backup) power from batteries or generators (per NFPA 72, minimum 24 hours standby + 5 minutes alarm).